Neuromuscular System
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What is the nervous system?
Allows the body to sense and respond to environmental changes, both those that arise internally as well as those caused by external stimuli
The nervous system is divided into what parts (2)?
Central and peripheral nervous systems
What is the central nervous system comprised of what structures?
Brain and spinal cord
What is the peripheral nervous system consisted of?
Neurons (nerve cells) that send and receive signals throughout the body
What is the function of the CNS?
Processes info in the brain
What is the brain?
Functions as the control center for the body
What is the largest part of the brain and what is its function?
Cerebrum -responsible for thought and perception, visual and auditory processing
The brain is divided into two halves connected by what?
Corpus callosum; nerve fibers that allows communication between the right and left hemisphere of the brain
The cerebrum is divided into how many lobes? And what are those 4?
4; frontal, parietal, temporal, and occipital lobes
What is the function of the frontal lobe?
Voluntary movement and activity in addition to cognitive functions
What is the function of the parietal lobes?
Processes data related to movement, taste, temperature, and touch
What is the function of the occipital lobe?
Primarily responsible for vision
What is the function of the temporal lobe?
Auditory information, comprehension, emotion, language, memory,, sensory input, and vision
What does brain stem connect?
Connects the cerebrum to the spinal cord
What is the function of the spinal cord?
Controls critical involuntary body functions
What is the cerebellum responsible for?
Muscle control and balance
What does the medulla regulate?
Breathing, swallowing, and the beating of the heart
Function of the spinal cord
Cylindrical column of nerves that runs through the center of the spine Where nerves impulses are transmitted from the extremities of the body to the brain
What kind of fibers make up spinal nerves? (2)
Sensory (afferent) and motor (efferent) fibers
What kind of info does afferent (sensory) neurons convey to the brain?
Temperature, pain, pressure
What kind of info the efferent (motor) neurons convey?
Response commands from the CNS transmitted back to the musculature
What does the peripheral nervous system include?
All the nerves that exist outside of the CNS
The peripheral nervous system is divided into what 2 systems?
Somatic nervous system and the autonomic nervous system
What is the function of the somatic nervous system?
Sends and receives signals form the skeletal muscle (Under conscious control)